Top billers · Drug Testing · Delaware

Who bills drug testing in Delaware?

In 2024, 36 providers billed Medicare for presumptive and definitive drug testing in Delaware: 15,112 services and an estimated $2.8M in Medicare payments. Below: the top 5 by service volume, straight from CMS's public billing data.

The list

The top 5 drug testing billers in Delaware.

Ranked by 2024 Medicare service volume across the family's codes.

#	Provider	Specialty	City	Services	Est. Medicare paid
1	Delaware Diagnostic Labs, LLC	Clinical Laboratory	Newark	6,449	$1.3M
2	Chee Woo, MD	Anesthesiology	Wilmington	1,716	$402K
3	Heather Graham, DNP, APRN, AANP	Nurse Practitioner	Dover	884	$97K
4	Eunice Boyd-Gant, DNP, APRN, FNP-BC	Nurse Practitioner	Dover	552	$134K
5	Terence Duffy, MD	Physical Medicine and Rehabilitation	Middletown	504	$116K

That's the top 5. 31 more providers billed drug testing in Delaware in 2024. The full ranked list, with year-over-year history, group affiliations, and phone numbers, is one search in Prospect 811.

See the full list →

The breakdown

What's behind the number.

Top codes in Delaware

G0483Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms9,065

80307Testing for presence of drug, by chemistry analyzers3,312

G0482Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms1,305

G0481Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms854

80305Testing for presence of drug, read by direct observation559

G0480Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms17

Top specialties billing it

Nurse Practitioner11 providers

Pain Management8 providers

Physician Assistant5 providers

Physical Medicine and Rehabilitation3 providers

Where the billers are

Wilmington13 providers

Newark10 providers

Dover6 providers

Milford2 providers

Bear1 providers

City breakdown

The top drug testing cities in Delaware.

The same 2024 Medicare data, sliced by city: the biggest drug testing cities by number of billers, in est.-Medicare-paid order.

In 2024 the top city for drug testing in Delaware by est. Medicare paid was Newark: 10 providers billed 8,189 services for an estimated $1.5M, led by Delaware Diagnostic Labs, LLC, with 6,449 services (est. $1.3M Medicare paid).

#	City	Billers	Services	Est. Medicare paid	City leader (2024)
1	Newark	10	8,189	$1.5M	Delaware Diagnostic Labs, LLC · 6,449 services · est. $1.3M
2	Wilmington	13	3,437	$736K	Chee Woo, MD · 1,716 services · est. $402K
3	Dover	6	1,551	$240K	Heather Graham, DNP, APRN, AANP · 884 services · est. $97K
4	Middletown	1	504	$116K	—
5	Milford	2	99	$9K	—

City totals are cut from the same public CMS data as everything above: Medicare fee-for-service only, after CMS's under-11-beneficiary suppression, dollars always est. Medicare paid. Where a city shows fewer than 3 billers, we show the totals and name no one. Naming is capped by design: up to 5 ranked billers above plus at most one leader per city here, and no one else on this page.

Where these numbers come from. Everything on this page is computed from CMS's public Medicare Provider Utilization & Payment data for 2024, the most recent year CMS has released. It covers traditional Medicare fee-for-service only (no commercial insurance, no Medicare Advantage). CMS suppresses any provider-and-code line with fewer than 11 beneficiaries before publishing, so low-volume billers don't appear at all. "Est. Medicare paid" is each billing line's average Medicare payment multiplied by its service count, summed. One service is one drug screen or definitive panel as billed to Medicare. Prospect 811 organizes public data; it doesn't add to or alter it. Not affiliated with or endorsed by CMS. Full detail on the data page.

This is one code family, one state, one year.

Prospect 811 searches all 535 million Medicare billing records on any code you sell, maps your exact territory, and hands you the phone numbers. $79/month, no contract, 14-day refund.

Start prospecting →